queryx_wrap.go

// Copyright (C) 2017 ScyllaDB
// Use of this source code is governed by a ALv2-style
// license that can be found in the LICENSE file.

package gocqlx

import (
	"context"

	"github.com/gocql/gocql"
)

// This file contains wrappers around gocql.Query that make Queryx expose the
// same interface but return *Queryx, this should be inlined by compiler.

// Consistency sets the consistency level for this query. If no consistency
// level have been set, the default consistency level of the cluster
// is used.
func (q *Queryx) Consistency(c gocql.Consistency) *Queryx {
	q.Query.Consistency(c)
	return q
}

// CustomPayload sets the custom payload level for this query.
func (q *Queryx) CustomPayload(customPayload map[string][]byte) *Queryx {
	q.Query.CustomPayload(customPayload)
	return q
}

// Trace enables tracing of this query. Look at the documentation of the
// Tracer interface to learn more about tracing.
func (q *Queryx) Trace(trace gocql.Tracer) *Queryx {
	q.Query.Trace(trace)
	return q
}

// Observer enables query-level observer on this query.
// The provided observer will be called every time this query is executed.
func (q *Queryx) Observer(observer gocql.QueryObserver) *Queryx {
	q.Query.Observer(observer)
	return q
}

// PageSize will tell the iterator to fetch the result in pages of size n.
// This is useful for iterating over large result sets, but setting the
// page size too low might decrease the performance. This feature is only
// available in Cassandra 2 and onwards.
func (q *Queryx) PageSize(n int) *Queryx {
	q.Query.PageSize(n)
	return q
}

// DefaultTimestamp will enable the with default timestamp flag on the query.
// If enable, this will replace the server side assigned
// timestamp as default timestamp. Note that a timestamp in the query itself
// will still override this timestamp. This is entirely optional.
//
// Only available on protocol >= 3
func (q *Queryx) DefaultTimestamp(enable bool) *Queryx {
	q.Query.DefaultTimestamp(enable)
	return q
}

// WithTimestamp will enable the with default timestamp flag on the query
// like DefaultTimestamp does. But also allows to define value for timestamp.
// It works the same way as USING TIMESTAMP in the query itself, but
// should not break prepared query optimization
//
// Only available on protocol >= 3
func (q *Queryx) WithTimestamp(timestamp int64) *Queryx {
	q.Query.WithTimestamp(timestamp)
	return q
}

// RoutingKey sets the routing key to use when a token aware connection
// pool is used to optimize the routing of this query.
func (q *Queryx) RoutingKey(routingKey []byte) *Queryx {
	q.Query.RoutingKey(routingKey)
	return q
}

// WithContext returns a shallow copy of q with its context
// set to ctx.
//
// The provided context controls the entire lifetime of executing a
// query, queries will be canceled and return once the context is
// canceled.
func (q *Queryx) WithContext(ctx context.Context) *Queryx {
	q.Query = q.Query.WithContext(ctx)
	return q
}

// Prefetch sets the default threshold for pre-fetching new pages. If
// there are only p*pageSize rows remaining, the next page will be requested
// automatically.
func (q *Queryx) Prefetch(p float64) *Queryx {
	q.Query.Prefetch(p)
	return q
}

// RetryPolicy sets the policy to use when retrying the query.
func (q *Queryx) RetryPolicy(r gocql.RetryPolicy) *Queryx {
	q.Query.RetryPolicy(r)
	return q
}

// SetSpeculativeExecutionPolicy sets the execution policy.
func (q *Queryx) SetSpeculativeExecutionPolicy(sp gocql.SpeculativeExecutionPolicy) *Queryx {
	q.Query.SetSpeculativeExecutionPolicy(sp)
	return q
}

// Idempotent marks the query as being idempotent or not depending on
// the value.
func (q *Queryx) Idempotent(value bool) *Queryx {
	q.Query.Idempotent(value)
	return q
}

// SerialConsistency sets the consistency level for the
// serial phase of conditional updates. That consistency can only be
// either SERIAL or LOCAL_SERIAL and if not present, it defaults to
// SERIAL. This option will be ignored for anything else that a
// conditional update/insert.
func (q *Queryx) SerialConsistency(cons gocql.SerialConsistency) *Queryx {
	q.Query.SerialConsistency(cons)
	return q
}

// PageState sets the paging state for the query to resume paging from a specific
// point in time. Setting this will disable to query paging for this query, and
// must be used for all subsequent pages.
func (q *Queryx) PageState(state []byte) *Queryx {
	q.Query.PageState(state)
	return q
}

// NoSkipMetadata will override the internal result metadata cache so that the driver does not
// send skip_metadata for queries, this means that the result will always contain
// the metadata to parse the rows and will not reuse the metadata from the prepared
// staement. This should only be used to work around cassandra bugs, such as when using
// CAS operations which do not end in Cas.
//
// See https://issues.apache.org/jira/browse/CASSANDRA-11099
// https://github.com/gocql/gocql/issues/612
func (q *Queryx) NoSkipMetadata() *Queryx {
	q.Query.NoSkipMetadata()
	return q
}